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https://issues.apache.org/jira/browse/HBASE-14420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14905373#comment-14905373
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stack commented on HBASE-14420:
-------------------------------
So, after some git bisecting on branch-1, I see that HBASE-14290 "Spin up less
threads in tests" made it so TestWithDisabledAuthorization took 15minutes to
complete where it usually completed in seconds... also left around a zombie
trying to do setup against cluster. The test is fine in trunk w/ same patch
applied. The patch in HBASE-14378 Get TestAccessController* passing again on
branch-1 actually addresses TestWithDisabledAuthorization trying to give it
more resources but I tried just that portion of the patch and it doesn't help.
Looking more at what HBASE-14290 wrought
> Zombie Stomping Session
> -----------------------
>
> Key: HBASE-14420
> URL: https://issues.apache.org/jira/browse/HBASE-14420
> Project: HBase
> Issue Type: Umbrella
> Components: test
> Reporter: stack
> Assignee: stack
> Priority: Critical
>
> Patch build are now failing most of the time because we are dropping zombies.
> I confirm we are doing this on non-apache build boxes too.
> Left-over zombies consume resources on build boxes (OOME cannot create native
> threads). Having to do multiple test runs in the hope that we can get a
> non-zombie-making build or making (arbitrary) rulings that the zombies are
> 'not related' is a productivity sink. And so on...
> This is an umbrella issue for a zombie stomping session that started earlier
> this week. Will hang sub-issues of this one. Am running builds back-to-back
> on little cluster to turn out the monsters.
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